Weekly Chest CasesArchive of Old Cases

Case No : 1265 Date 2022-01-17

  • Courtesy of Kyongmin Sarah Beck / Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea
  • Age/Sex 46 / M
  • Chief ComplaintAbnormality on chest x-ray
  • Figure 1
  • Figure 2
  • Figure 3
  • Figure 4
  • Figure 5
  • Figure 6

Diagnosis With Brief Discussion

Diagnosis
thymoliposarcoma
Radiologic Findings
Figs 1-2. Chest PA (A) and right lateral (B) images show a large triangular-shaped mass in the right anterior mediastinum, with obscuration of the right hear border.
Figs 3-5. Chest CT scans reveal a large fatty mass (or prominent pericardial fat pad) showing fluid collections and fat haziness and containing a small rim-enhancing round mass with an internal round nonenhancing portion in the right anterior mediastinum.
Fig 6. MRI of the chest reveals a large fatty mass with internal strands, soft tissue lesion, and a small round rim-enhancing lesion in the right anterior mediastinum.
Brief Review
Gross specimen revealed a 15.3 x 12.5 cm sized anterior mediastinal mass, and the final pathology was thymoliposarcoma.

Thymoliposarcoma is a very rare, large-sized mesenchymal tumor. Patients are usually asymptomatic at diagnosis. The tumor is usually lobulated and encapsulated and expands without infiltrating into the neighboring structures. Thymoliposarcoma contains varying proportions of fibrosis and yellow adipose tissue. The mean age of the diagnosis is 56 years with a slight male predominance. On CT, thymoliposarcomas usually present as anterior mediastinal tumors with predominantly soft tissue density and some foci of fat. The mainstay of treatment is surgical resection of the tumor, and the prognosis is usually favorable.
References
1. Alhames S, Ghabally M. Enbloc resection of the largest thymic liposarcoma: A case report with literature review. Annals of Medicine and Surgery. Volume 59 2020; 204-206.
2. S.J. Howling, J.D. Flint, N.L. Muller Thymoliposarcoma, CT and pathologic findings, Clin. Radiol. 54 (1999) 54.
Keywords
thymoliposarcoma,

No. of Applicants : 92

▶ Correct Answer : 5/92,  5.4%
  • - , Canada ASHISH GUPTA
  • - , Italy PAOLO BALDASSARI
  • - Manipal HealthMap , India SHASHANK SOOD
  • - Eskisehir Sehir Hastanesi , Turkey MURAT SAHIN
  • - Chonbuk National University Hospital , Korea (South) DONG HAN SHIN
▶ Correct Answer as Differential Diagnosis : 4/92,  4.3%
  • - , Japan CHIAKI SATO
  • - The University of Tokyo Hospital , Japan TOSHIHIRO FURUTA
  • - Diskapi Yildirim Beyazit Hospital, Ankara , Turkey MERIC TUZUN
  • - Ichinomiya Nishi Hospital , Japan Takao Kiguchi
▶ Semi-Correct Answer : 44/92,  47.8%
  • - , Japan HIROAKI ARAKAWA
  • - , Japan JUN KANZAWA
  • - ZIGONG TCM HOSPITAL OF CHINA , China CAO CUN YOU
  • - Kinki University Faculty of Medicine, , Japan MITSURU MATSUKI
  • - Ulsan University Hospital , Korea (South) SOYEOUN LIM
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  • - Gifu University Hospital , Japan Yo Kaneko
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  • - , United States HIROAKI TAKAHASHI
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  • - University of Tsukuba, Dept of Radiology , Japan MANABU MINAMI
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  • - Osmania Medical College, Hyderabad , India PURUSHOTHAMA RAO TUMMALA
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  • - Kyoto University Hospital , Japan SATOSHI IKEDA
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  • - Private sector , Greece VASILIOS TZILAS
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  • - , Korea (South) HM PARK
  • - the first affiliatited hospital of nanjing medical univercity , China HAI XU
  • - Jiangsu province hospital , China WANGJIAN ZHA
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